ClickMeeting - Collaborate with partners and clients using ClickMeeting professional web conferencing software. Try it now, FREE!
Tox - Send messages, files, create groups and make Tox to Tox audio and video calls. Securely.
Zoom - Equip your team with tools designed to collaborate, connect, and engage with teammates and customers, no matter where you’re located, all in one platform.
Signal - Fast, simple & secure messaging. Privacy that fits in your pocket.
BigBlueButton - Engage Your Online Students. BigBlueButton is a web conferencing system designed for online learning.
uTox - µTox is the lightweight client with minimal dependencies; it not only looks pretty, it runs...